1 | package org.springframework.batch.core.repository.dao; |
2 | |
3 | import java.util.Collection; |
4 | import java.util.Iterator; |
5 | |
6 | import org.springframework.batch.core.Job; |
7 | import org.springframework.batch.core.JobInstance; |
8 | import org.springframework.batch.core.JobParameters; |
9 | import org.springframework.batch.support.transaction.TransactionAwareProxyFactory; |
10 | import org.springframework.util.Assert; |
11 | |
12 | /** |
13 | * In-memory implementation of {@link JobInstanceDao}. |
14 | */ |
15 | public class MapJobInstanceDao implements JobInstanceDao { |
16 | |
17 | private static Collection jobInstances = TransactionAwareProxyFactory.createTransactionalList(); |
18 | |
19 | private static long currentId = 0; |
20 | |
21 | public static void clear() { |
22 | jobInstances.clear(); |
23 | } |
24 | |
25 | public JobInstance createJobInstance(Job job, JobParameters jobParameters) { |
26 | |
27 | Assert.state(getJobInstance(job, jobParameters) == null, "JobInstance must not already exist"); |
28 | |
29 | JobInstance jobInstance = new JobInstance(new Long(currentId++), jobParameters, job.getName()); |
30 | jobInstance.incrementVersion(); |
31 | jobInstances.add(jobInstance); |
32 | |
33 | return jobInstance; |
34 | } |
35 | |
36 | public JobInstance getJobInstance(Job job, JobParameters jobParameters) { |
37 | |
38 | for (Iterator iterator = jobInstances.iterator(); iterator.hasNext();) { |
39 | JobInstance instance = (JobInstance) iterator.next(); |
40 | if (instance.getJobName().equals(job.getName()) && instance.getJobParameters().equals(jobParameters)) { |
41 | return instance; |
42 | } |
43 | } |
44 | return null; |
45 | |
46 | } |
47 | |
48 | } |